/* roulang page: index */
/* ===== DESIGN SYSTEM ===== */
        :root {
            --primary: #0f0e3a;
            --primary-light: #1a1850;
            --primary-dark: #08071f;
            --accent: #e8b830;
            --accent-dark: #d4a017;
            --accent-glow: rgba(232, 184, 48, 0.25);
            --bg-dark: #0a0a1a;
            --bg-section: #111130;
            --bg-card: #181840;
            --bg-card-hover: #202050;
            --text-light: #ffffff;
            --text-muted: #b0b0c0;
            --text-soft: #d0d0e0;
            --border-color: rgba(232, 184, 48, 0.15);
            --border-radius-sm: 8px;
            --border-radius: 14px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.2);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --nav-height: 76px;
        }

        /* ===== RESET & BASE ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            padding-left: 1.25rem;
        }

        /* ===== BOOTSTRAP OVERRIDES ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .btn {
            border-radius: var(--border-radius-sm);
            font-weight: 600;
            padding: 0.625rem 1.75rem;
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.02em;
        }
        .btn:focus,
        .btn:focus-visible {
            box-shadow: 0 0 0 4px var(--accent-glow);
            outline: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-color: var(--accent);
            color: var(--primary-dark);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--accent-dark), var(--accent));
            border-color: var(--accent-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--accent-glow);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px var(--accent-glow);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.3);
            color: var(--text-light);
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }

        .btn-lg {
            padding: 0.875rem 2.5rem;
            font-size: 1.125rem;
            border-radius: var(--border-radius-sm);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(232, 184, 48, 0.3);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

        .badge {
            font-weight: 500;
            padding: 0.35em 0.85em;
            border-radius: 50px;
            font-size: 0.75rem;
            letter-spacing: 0.03em;
            background: var(--accent);
            color: var(--primary-dark);
        }
        .badge-secondary {
            background: rgba(232, 184, 48, 0.15);
            color: var(--accent);
            border: 1px solid rgba(232, 184, 48, 0.2);
        }

        .text-accent {
            color: var(--accent) !important;
        }
        .text-muted {
            color: var(--text-muted) !important;
        }
        .bg-section {
            background-color: var(--bg-section);
        }

        /* ===== NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 10, 26, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(232, 184, 48, 0.08);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 26, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            height: var(--nav-height);
            position: relative;
        }

        /* Left nav group */
        .nav-left {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin-right: auto;
        }
        /* Right nav group */
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin-left: auto;
        }

        .nav-link-custom {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-link-custom:hover {
            color: var(--accent);
            background: rgba(232, 184, 48, 0.06);
        }
        .nav-link-custom.active {
            color: var(--accent);
            background: rgba(232, 184, 48, 0.10);
        }
        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-link-custom:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* Logo — centered */
        .nav-logo {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.04em;
            transition: var(--transition);
            text-align: center;
            line-height: 1.2;
        }
        .nav-logo:hover {
            color: var(--accent);
        }
        .nav-logo .logo-sub {
            display: block;
            font-size: 0.55rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.3em;
            text-transform: uppercase;
            margin-top: 2px;
        }

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 0.25rem 0.5rem;
            cursor: pointer;
            transition: var(--transition);
            z-index: 1060;
        }
        .nav-toggle:hover {
            color: var(--accent);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
        }

        /* Mobile menu overlay */
        .nav-mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(6px);
            z-index: 1040;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }
        .nav-mobile-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .nav-mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            max-width: 80vw;
            height: 100vh;
            background: var(--primary);
            z-index: 1055;
            padding: 5rem 1.5rem 2rem;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.6);
            border-left: 1px solid var(--border-color);
            overflow-y: auto;
        }
        .nav-mobile-menu.open {
            right: 0;
        }
        .nav-mobile-menu .nav-link-custom {
            display: block;
            padding: 0.875rem 1rem;
            font-size: 1.05rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .nav-mobile-menu .nav-link-custom.active::after {
            display: none;
        }
        .nav-mobile-menu .nav-link-custom.active {
            background: rgba(232, 184, 48, 0.12);
            border-left: 3px solid var(--accent);
        }
        .nav-mobile-close {
            position: absolute;
            top: 1rem;
            right: 1.25rem;
            background: transparent;
            border: none;
            color: var(--text-light);
            font-size: 1.75rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-mobile-close:hover {
            color: var(--accent);
            transform: rotate(90deg);
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 1.5rem 5rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #0d0b30 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(232, 184, 48, 0.06) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(232, 184, 48, 0.12);
            border: 1px solid rgba(232, 184, 48, 0.2);
            color: var(--accent);
            padding: 0.4rem 1.5rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.06em;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-light);
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-sub {
            font-size: 1.2rem;
            color: var(--text-soft);
            max-width: 640px;
            margin: 0 auto 2.25rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2.5rem 4rem;
            margin-top: 3.5rem;
            padding-top: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        /* ===== SECTION TITLES ===== */
        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 3rem;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-dark));
            border-radius: 4px;
            margin: 0 auto 1.5rem;
        }

        /* ===== FEATURE / INTRO ===== */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            padding: 2.25rem 1.75rem;
            transition: var(--transition);
            height: 100%;
            text-align: center;
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(232, 184, 48, 0.2);
            box-shadow: var(--shadow);
            transform: translateY(-6px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(232, 184, 48, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.75rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(232, 184, 48, 0.18);
            transform: scale(1.05);
        }
        .feature-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--text-light);
        }
        .feature-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CATEGORY CARDS ===== */
        .category-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            border-color: rgba(232, 184, 48, 0.3);
            box-shadow: var(--shadow);
            transform: translateY(-6px);
        }
        .category-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover .category-card-img {
            transform: scale(1.03);
        }
        .category-card-body {
            padding: 1.5rem 1.5rem 2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .category-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .category-card-link {
            margin-top: 1rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }
        .category-card-link i {
            transition: var(--transition);
        }
        .category-card:hover .category-card-link i {
            transform: translateX(4px);
        }

        /* ===== POST / NEWS CARDS ===== */
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(232, 184, 48, 0.2);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .post-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: var(--transition);
        }
        .post-card:hover .post-card-img {
            transform: scale(1.02);
        }
        .post-card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
        }
        .post-card-meta .badge {
            font-size: 0.65rem;
            padding: 0.2em 0.7em;
        }
        .post-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            line-height: 1.5;
            margin-bottom: 0.5rem;
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card:hover .post-card-title {
            color: var(--accent);
        }
        .post-card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        /* ===== STATS BLOCK ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
        }
        .stat-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(232, 184, 48, 0.2);
            box-shadow: var(--shadow-sm);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.35rem;
        }

        /* ===== PROCESS / STEPS ===== */
        .step-card {
            text-align: center;
            padding: 1.5rem 1rem;
            position: relative;
        }
        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            box-shadow: 0 8px 24px var(--accent-glow);
        }
        .step-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .step-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 260px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .step-connector {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 184, 48, 0.15);
        }
        .faq-question {
            padding: 1.25rem 1.75rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 1rem;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -4px;
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.75rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.75rem 1.5rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 4rem 1.5rem;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 1.5rem 1.5rem;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-left,
            .nav-right {
                gap: 0.1rem;
            }
            .nav-link-custom {
                padding: 0.5rem 0.7rem;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 820px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-toggle {
                display: block;
                margin-left: auto;
            }
            .nav-logo {
                position: relative;
                left: auto;
                top: auto;
                transform: none;
                margin-right: auto;
                font-size: 1.2rem;
            }
            .nav-wrapper {
                justify-content: space-between;
            }
            .nav-mobile-overlay {
                display: block;
            }
            .nav-mobile-menu {
                display: block;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem 2rem;
            }
            .hero-stat-num {
                font-size: 1.75rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 576px) {
            :root {
                --nav-height: 64px;
            }
            .hero-section {
                min-height: 85vh;
                padding: 6rem 1rem 3rem;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 260px;
            }
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
                margin-top: 2rem;
                padding-top: 1.5rem;
            }
            .hero-stat-item {
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 0.75rem;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-item {
                padding: 1.25rem 0.75rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .feature-card {
                padding: 1.5rem 1rem;
            }
            .category-card-img {
                height: 160px;
            }
            .post-card-img {
                height: 150px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .cta-desc {
                font-size: 0.95rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 1rem 1.25rem;
            }
            .faq-answer {
                font-size: 0.88rem;
                padding: 0 1.25rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 1.25rem 1.25rem;
            }
            .footer-brand {
                font-size: 1.1rem;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo .logo-sub {
                font-size: 0.5rem;
            }
            .nav-mobile-menu {
                width: 260px;
                padding: 4.5rem 1.25rem 1.5rem;
            }
        }

        @media (min-width: 821px) {
            .nav-mobile-overlay,
            .nav-mobile-menu,
            .nav-toggle {
                display: none !important;
            }
        }

        /* ===== UTILITY ===== */
        .gap-1 { gap: 0.5rem; }
        .gap-2 { gap: 1rem; }
        .gap-3 { gap: 1.5rem; }
        .gap-4 { gap: 2rem; }
        .mt-section { margin-top: 4rem; }
        .mb-section { margin-bottom: 4rem; }

        /* Smooth fade-in on scroll (optional utility) */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== EMPTY STATE ===== */
        .empty-state {
            text-align: center;
            padding: 2.5rem 1.5rem;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px dashed var(--border-color);
        }
        .empty-state i {
            font-size: 2.5rem;
            color: var(--text-muted);
            opacity: 0.4;
            margin-bottom: 1rem;
        }
        .empty-state p {
            font-size: 1rem;
            margin-bottom: 0;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-lighter: #4a6fa5;
            --secondary: #c9a84c;
            --secondary-light: #e0c66a;
            --accent: #e74c3c;
            --bg-dark: #0f1a3a;
            --bg-darker: #0b132b;
            --bg-light: #f8f9fc;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-main: #2c3e50;
            --text-muted: #6c7a8d;
            --text-light: #a0b4c8;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 14px 40px rgba(0,0,0,0.10);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            padding-top: var(--header-height);
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); text-decoration: none; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        .container { max-width: var(--container-max); padding: 0 20px; margin: 0 auto; width: 100%; }
        .row { --bs-gutter-x: 1.5rem; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(15, 26, 58, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(201, 168, 76, 0.15);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(11, 19, 43, 0.98); }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link-custom {
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.78);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.3px;
            position: relative;
        }
        .nav-link-custom:hover { color: #fff; background: rgba(201, 168, 76, 0.12); }
        .nav-link-custom.active { color: var(--secondary); background: rgba(201, 168, 76, 0.10); }
        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
            transition: var(--transition);
        }
        .nav-logo:hover { color: var(--secondary); }
        .nav-logo .logo-sub {
            font-size: 0.65rem;
            font-weight: 400;
            color: var(--text-light);
            letter-spacing: 2px;
            margin-top: 1px;
        }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 6px 10px; border-radius: var(--radius-sm); transition: var(--transition); z-index: 1060; }
        .nav-toggle:hover { background: rgba(255,255,255,0.08); }
        .nav-toggle:focus { outline: 2px solid var(--secondary); outline-offset: 2px; }

        /* Mobile nav dropdown */
        .nav-mobile-dropdown {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(11, 19, 43, 0.98);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            padding: 16px 20px 24px;
            border-bottom: 1px solid rgba(201, 168, 76, 0.15);
            box-shadow: 0 12px 30px rgba(0,0,0,0.3);
            z-index: 1040;
            flex-direction: column;
            gap: 6px;
        }
        .nav-mobile-dropdown.open { display: flex; }
        .nav-mobile-dropdown .nav-link-custom {
            padding: 12px 16px;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            width: 100%;
        }

        /* ===== Hero / Banner ===== */
        .article-banner {
            position: relative;
            padding: 60px 0 50px;
            background: var(--bg-darker);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,19,43,0.88) 0%, rgba(15,26,58,0.72) 60%, rgba(26,42,108,0.50) 100%);
            z-index: 1;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .article-banner .breadcrumb-custom a { color: var(--secondary-light); }
        .article-banner .breadcrumb-custom a:hover { color: var(--secondary); }
        .article-banner .breadcrumb-custom span { color: rgba(255,255,255,0.6); }
        .article-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            max-width: 860px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .article-meta .badge-custom {
            display: inline-block;
            background: rgba(201, 168, 76, 0.18);
            color: var(--secondary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-meta i { margin-right: 4px; color: var(--secondary); }

        /* ===== Main Content ===== */
        .article-main {
            padding: 50px 0 60px;
            background: var(--bg-light);
        }
        .article-content-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-main);
        }
        .article-content p { margin-bottom: 1.2rem; }
        .article-content h2, .article-content h3 {
            font-weight: 600;
            color: var(--primary);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .article-content h2 { font-size: 1.6rem; }
        .article-content h3 { font-size: 1.25rem; }
        .article-content ul, .article-content ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        .article-content ul li { list-style: disc; margin-bottom: 0.3rem; }
        .article-content ol li { list-style: decimal; margin-bottom: 0.3rem; }
        .article-content img { border-radius: var(--radius-md); margin: 1.2rem 0; box-shadow: var(--shadow-sm); }
        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            padding: 12px 20px;
            background: rgba(201, 168, 76, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.2rem 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-content a { color: var(--primary-light); font-weight: 500; }
        .article-content a:hover { color: var(--primary); text-decoration: underline; }

        /* Article footer nav */
        .article-footer-nav {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .article-footer-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-main);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-footer-nav a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); }
        .article-footer-nav a i { font-size: 0.8rem; }

        /* ===== Related / Recommended ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--bg-card);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            position: relative;
            padding-bottom: 12px;
        }
        .related-section .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary);
            border-radius: 3px;
        }
        .card-related {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
        }
        .card-related:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-lighter); }
        .card-related img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
        .card-related .card-body { padding: 18px 20px 22px; }
        .card-related .card-body .cat-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--secondary);
            background: rgba(201, 168, 76, 0.10);
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 8px;
        }
        .card-related .card-body h5 { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; }
        .card-related .card-body h5 a { color: inherit; }
        .card-related .card-body h5 a:hover { color: var(--primary-light); }
        .card-related .card-body p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 8px; line-height: 1.5; }
        .card-related .card-body .date { font-size: 0.78rem; color: var(--text-light); }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
        .not-found-box h3 { font-size: 1.3rem; color: var(--text-dark); margin-bottom: 10px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 20px; }
        .not-found-box .btn-back { padding: 10px 28px; border-radius: var(--radius-sm); background: var(--primary); color: #fff; border: none; transition: var(--transition); }
        .not-found-box .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 24px;
            border-top: 2px solid rgba(201, 168, 76, 0.12);
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .site-footer .footer-desc { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; max-width: 320px; }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .site-footer .footer-links { display: flex; flex-direction: column; gap: 8px; }
        .site-footer .footer-links a {
            color: var(--text-light);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 18px;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .site-footer .footer-bottom a { color: var(--secondary-light); }
        .site-footer .footer-bottom a:hover { color: var(--secondary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-content-wrap { padding: 32px 28px; }
            .article-banner h1 { font-size: 1.8rem; }
        }
        @media (max-width: 820px) {
            .nav-left, .nav-right { display: none; }
            .nav-toggle { display: block; }
            .nav-logo { position: relative; left: auto; top: auto; transform: none; font-size: 1.2rem; }
            .nav-logo .logo-sub { font-size: 0.6rem; }
            .nav-wrapper { justify-content: space-between; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            body { padding-top: 64px; }
            .article-banner { padding: 40px 0 32px; }
            .article-banner h1 { font-size: 1.5rem; }
            .article-meta { flex-direction: column; gap: 8px; }
            .article-content-wrap { padding: 24px 18px; border-radius: var(--radius-md); }
            .article-content { font-size: 0.98rem; }
            .article-content h2 { font-size: 1.3rem; }
            .article-footer-nav { flex-direction: column; align-items: stretch; }
            .article-footer-nav a { justify-content: center; }
            .related-section .section-title { font-size: 1.3rem; }
            .site-footer { padding: 36px 0 18px; }
            .site-footer .footer-brand { font-size: 1.2rem; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.2rem; }
            .article-content-wrap { padding: 18px 12px; }
            .article-meta .badge-custom { font-size: 0.7rem; padding: 3px 10px; }
            .card-related img { height: 140px; }
            .card-related .card-body { padding: 14px 16px; }
        }

        /* ===== Utility ===== */
        .text-secondary-custom { color: var(--secondary); }
        .bg-primary-custom { background: var(--primary); }
        .btn-outline-secondary-custom {
            border: 1px solid var(--secondary);
            color: var(--secondary);
            background: transparent;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .btn-outline-secondary-custom:hover { background: var(--secondary); color: #fff; }
        .section-padding { padding: 60px 0; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --secondary: #b8860b;
            --secondary-light: #d4a843;
            --accent: #e85d3a;
            --accent-light: #f07a5a;
            --bg-dark: #0b0f1a;
            --bg-section: #f4f6fc;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-muted: #6b7280;
            --text-light: #f0f2f8;
            --border-color: #e2e6f0;
            --border-light: #f0f2f8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.14);
            --transition: all 0.30s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Roboto, system-ui, sans-serif;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-body);
            background: var(--bg-section);
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--secondary);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 3px solid var(--secondary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary-light);
            outline-offset: 2px;
        }

        ul,
        ol {
            padding-left: 0;
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 2px solid rgba(184, 134, 11, 0.25);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(6px);
            padding: 0 0;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link-custom {
            color: var(--text-light) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.3px;
            position: relative;
            text-decoration: none !important;
        }
        .nav-link-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--secondary-light) !important;
            transform: translateY(-1px);
        }
        .nav-link-custom.active {
            background: var(--secondary);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(184, 134, 11, 0.35);
        }
        .nav-link-custom.active:hover {
            background: var(--secondary-light);
            color: #fff !important;
        }

        .nav-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-decoration: none !important;
            color: #fff !important;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 1px;
            transition: var(--transition);
            line-height: 1.2;
        }
        .nav-logo:hover {
            transform: scale(1.02);
            color: var(--secondary-light) !important;
        }
        .nav-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 300;
            color: var(--text-muted);
            letter-spacing: 2px;
            margin-top: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.10);
        }

        /* Mobile nav */
        @media (max-width: 820px) {
            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--bg-dark);
                padding: 12px 0 20px;
                gap: 6px;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-wrapper {
                flex-wrap: wrap;
            }
            .nav-wrapper .nav-left,
            .nav-wrapper .nav-right {
                display: none;
            }
            .nav-wrapper.nav-open .nav-left,
            .nav-wrapper.nav-open .nav-right {
                display: flex;
            }
            .nav-toggle {
                display: block;
                position: absolute;
                right: 0;
                top: 14px;
            }
            .nav-link-custom {
                padding: 10px 20px;
                font-size: 1rem;
                text-align: center;
                width: 100%;
            }
            .nav-logo {
                font-size: 1.25rem;
                margin-right: 50px;
            }
            .nav-logo .logo-sub {
                font-size: 0.6rem;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-link-custom {
                font-size: 0.9rem;
                padding: 8px 14px;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            background: linear-gradient(135deg, #0b0f1a 0%, #1a2a6c 60%, #2d1b4e 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 12px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            line-height: 1.6;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 60px 0 50px;
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero p {
                font-size: 0.9rem;
            }
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 70px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 0 auto 30px;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 30px;
            }
        }

        /* ===== Cards ===== */
        .custom-card {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .custom-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
        }
        .custom-card .card-img-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            height: 200px;
            object-fit: cover;
        }
        .custom-card .card-body {
            padding: 24px 20px 26px;
        }
        .custom-card .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .custom-card .card-text {
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .custom-card .card-tag {
            display: inline-block;
            background: var(--bg-section);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-right: 6px;
            margin-bottom: 6px;
            border: 1px solid var(--border-color);
        }
        .custom-card .card-link {
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .custom-card .card-link:hover {
            color: var(--secondary);
            gap: 10px;
        }

        /* ===== Badge / Tag ===== */
        .badge-custom {
            display: inline-block;
            background: var(--primary-light);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }
        .badge-custom.gold {
            background: var(--secondary);
        }
        .badge-custom.accent {
            background: var(--accent);
        }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

        /* ===== Feature Blocks ===== */
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.6rem;
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .feature-item:hover .feature-icon {
            transform: scale(1.08) rotate(-4deg);
            background: var(--secondary);
        }
        .feature-item h5 {
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .feature-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            margin-bottom: 14px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
        }
        .faq-question i {
            color: var(--secondary);
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.40s ease, padding 0.30s ease;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0b0f1a 0%, #1a2a6c 70%, #2d1b4e 100%);
            padding: 70px 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 14px 42px;
            border-radius: 50px;
            border: none;
            box-shadow: 0 8px 28px rgba(184, 134, 11, 0.35);
            transition: var(--transition);
            text-decoration: none !important;
            letter-spacing: 0.5px;
        }
        .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-4px) scale(1.02);
            box-shadow: 0 12px 36px rgba(184, 134, 11, 0.45);
            color: #fff;
        }
        .btn-cta:focus-visible {
            outline: 3px solid var(--secondary-light);
            outline-offset: 4px;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .btn-cta {
                font-size: 0.95rem;
                padding: 12px 32px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 50px 0 30px;
            border-top: 2px solid rgba(184, 134, 11, 0.15);
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 22px;
            margin-top: 32px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.70);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 36px 0 24px;
            }
            .site-footer .footer-brand {
                font-size: 1.3rem;
            }
            .footer-bottom {
                font-size: 0.8rem;
            }
        }

        /* ===== Misc ===== */
        .bg-section-alt {
            background: #ffffff;
        }
        .bg-section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-section-dark .section-title {
            color: #fff;
        }
        .bg-section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.70);
        }
        .text-gold {
            color: var(--secondary);
        }

        /* ===== Responsive Grid ===== */
        .row.g-4>[class*="col-"] {
            padding: 12px;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-padding {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== Button Base ===== */
        .btn-outline-primary-custom {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            font-weight: 600;
            padding: 10px 28px;
            border-radius: 50px;
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
        }
        .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 42, 108, 0.25);
        }

        /* ===== Accessibility ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
        }

        /* ===== Skip link ===== */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 20px;
            background: var(--secondary);
            color: #fff;
            padding: 10px 24px;
            border-radius: 0 0 8px 8px;
            z-index: 9999;
            font-weight: 600;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 0;
            color: #fff;
            text-decoration: none;
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1a2e;
            --primary-light: #132a44;
            --primary-dark: #060f1b;
            --accent: #c8a84e;
            --accent-light: #e0c06a;
            --accent-dark: #a88a32;
            --bg-body: #f4f6fa;
            --bg-card: #ffffff;
            --bg-dark: #0b1a2e;
            --bg-section-alt: #eef1f7;
            --text-dark: #1a1f2c;
            --text-body: #2d3548;
            --text-muted: #7a8299;
            --text-light: #f8f9fc;
            --border-color: #e2e6ee;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(11, 26, 46, 0.05);
            --shadow-md: 0 6px 24px rgba(11, 26, 46, 0.08);
            --shadow-lg: 0 14px 44px rgba(11, 26, 46, 0.12);
            --shadow-hover: 0 18px 48px rgba(11, 26, 46, 0.16);
            --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-body);
            background-color: var(--bg-body);
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-dark);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
            letter-spacing: -0.015em;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 2.5rem auto;
        }

        /* ===== Buttons ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            background: var(--accent);
            color: var(--primary-dark);
        }

        .btn-custom:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-custom:focus {
            outline: 3px solid var(--accent-light);
            outline-offset: 2px;
        }

        .btn-custom-outline {
            background: transparent;
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-custom-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .btn-custom-light {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
        }

        .btn-custom-light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-custom-sm {
            padding: 0.45rem 1.2rem;
            font-size: 0.85rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1080;
            background: rgba(11, 26, 46, 0.92);
            backdrop-filter: blur(18px) saturate(1.2);
            border-bottom: 1px solid rgba(200, 168, 78, 0.15);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 26, 46, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .nav-link-custom {
            padding: 0.4rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-link-custom:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            text-decoration: none;
        }

        .nav-link-custom.active {
            color: var(--accent);
            background: rgba(200, 168, 78, 0.12);
        }

        .nav-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.03em;
            line-height: 1.2;
            padding: 0 0.8rem;
            flex-shrink: 0;
            transition: opacity var(--transition);
        }

        .nav-logo:hover {
            opacity: 0.88;
            color: #fff;
            text-decoration: none;
        }

        .logo-sub {
            font-size: 0.62rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.2em;
            text-transform: uppercase;
            margin-top: 0.1rem;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 0.25rem 0.5rem;
            cursor: pointer;
            transition: color var(--transition);
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(11, 26, 46, 0.98);
            backdrop-filter: blur(18px);
            padding: 1.2rem 1.5rem 1.8rem;
            border-bottom: 1px solid rgba(200, 168, 78, 0.12);
            z-index: 1070;
            flex-direction: column;
            gap: 0.6rem;
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav .nav-link-custom {
            font-size: 1rem;
            padding: 0.6rem 1rem;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
        }

        .mobile-nav .nav-link-custom:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .mobile-nav .nav-link-custom.active {
            color: var(--accent);
            background: rgba(200, 168, 78, 0.1);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            padding: 8rem 0 3.5rem 0;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            position: relative;
            isolation: isolate;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 46, 0.88) 0%, rgba(11, 26, 46, 0.72) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(200, 168, 78, 0.18);
            color: var(--accent-light);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 1rem;
            border: 1px solid rgba(200, 168, 78, 0.2);
        }

        .banner-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .banner-text {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            margin-bottom: 1.8rem;
            line-height: 1.7;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            margin: 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb-custom li+li::before {
            content: '/';
            margin: 0 0.4rem;
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-light);
        }

        .breadcrumb-custom .active {
            color: var(--accent-light);
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 4.5rem 0;
        }

        .section-padding-sm {
            padding: 3rem 0;
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .card-custom .card-img-top {
            border-radius: var(--radius) var(--radius) 0 0;
            height: 200px;
            object-fit: cover;
            width: 100%;
        }

        .card-custom .card-body {
            padding: 1.5rem;
        }

        .card-custom .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-dark);
        }

        .card-custom .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            background: rgba(200, 168, 78, 0.1);
            color: var(--accent-dark);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 0.6rem;
        }

        /* ===== Feature / Icon Blocks ===== */
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius);
            background: rgba(200, 168, 78, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 1rem;
            transition: all var(--transition);
        }

        .card-custom:hover .feature-icon {
            background: var(--accent);
            color: var(--primary-dark);
            transform: scale(1.05);
        }

        .feature-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.4rem;
        }

        .feature-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Stats ===== */
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 0.3rem;
        }

        /* ===== Badge / Label ===== */
        .badge-custom {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(200, 168, 78, 0.12);
            color: var(--accent-dark);
            letter-spacing: 0.02em;
        }

        .badge-custom-white {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .faq-item:hover {
            border-color: rgba(200, 168, 78, 0.2);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            user-select: none;
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.8rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
            padding: 4.5rem 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 46, 0.9) 0%, rgba(11, 26, 46, 0.75) 100%);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.6rem;
        }

        .cta-text {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.8rem auto;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 1.5rem;
            border-top: 1px solid rgba(200, 168, 78, 0.08);
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.4rem;
            letter-spacing: 0.02em;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.8rem;
            letter-spacing: 0.03em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .footer-links li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-links li a:hover {
            color: var(--accent-light);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .banner-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-link-custom {
                font-size: 0.82rem;
                padding: 0.3rem 0.6rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .logo-sub {
                font-size: 0.55rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-wrapper {
                padding: 0.5rem 0;
            }
            .nav-logo {
                font-size: 1.05rem;
                padding: 0 0.4rem;
            }
            .page-banner {
                padding: 6rem 0 2.5rem 0;
            }
            .banner-title {
                font-size: 1.8rem;
            }
            .banner-text {
                font-size: 0.95rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .footer-brand {
                font-size: 1.2rem;
            }
            .footer-bottom {
                font-size: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .banner-title {
                font-size: 1.4rem;
            }
            .banner-text {
                font-size: 0.88rem;
            }
            .banner-actions {
                flex-direction: column;
                gap: 0.6rem;
            }
            .btn-custom {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
            }
            .card-custom .card-body {
                padding: 1.2rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .faq-item {
                padding: 1rem 1.2rem;
            }
            .faq-question {
                font-size: 0.92rem;
            }
            .nav-logo {
                font-size: 0.92rem;
            }
            .logo-sub {
                font-size: 0.48rem;
            }
            .page-banner {
                padding: 5rem 0 2rem 0;
            }
        }

        /* ===== Utility ===== */
        .bg-alt {
            background-color: var(--bg-section-alt);
        }

        .bg-dark-custom {
            background: var(--bg-dark);
        }

        .text-accent {
            color: var(--accent);
        }

        .gap-grid {
            gap: 1.8rem;
        }

        .mt-section {
            margin-top: 1.5rem;
        }

        .mb-section {
            margin-bottom: 1.5rem;
        }

        /* Image overlay for cover cards */
        .cover-overlay {
            position: relative;
            overflow: hidden;
        }

        .cover-overlay img {
            transition: transform 0.4s ease;
        }

        .cover-overlay:hover img {
            transform: scale(1.05);
        }

        /* Platform list */
        .platform-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.2rem;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }

        .platform-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(200, 168, 78, 0.3);
        }

        .platform-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(200, 168, 78, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent);
            flex-shrink: 0;
        }

        .platform-info {
            flex: 1;
        }

        .platform-info h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.1rem;
            color: var(--text-dark);
        }

        .platform-info span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0a1628;
            --primary-light: #1a2a4a;
            --primary-dark: #050e1a;
            --accent: #c9a84c;
            --accent-light: #e8c84c;
            --accent-dark: #a8882e;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0a1628;
            --bg-card: #ffffff;
            --text-primary: #0a1628;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0b0c4;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 22, 40, 0.10);
            --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.14);
            --shadow-accent: 0 6px 24px rgba(201, 168, 76, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            overflow-x: hidden;
            padding-top: var(--header-height);
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }
        .container { max-width: var(--container-max); padding-left: 20px; padding-right: 20px; margin: 0 auto; width: 100%; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(10, 22, 40, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            transition: background var(--transition);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-left { flex: 1; justify-content: flex-start; }
        .nav-right { flex: 1; justify-content: flex-end; }
        .nav-link-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-link-custom:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.12);
            transform: translateY(-1px);
        }
        .nav-link-custom.active {
            color: var(--accent);
            background: rgba(201, 168, 76, 0.12);
            border-color: rgba(201, 168, 76, 0.25);
            font-weight: 600;
        }
        .nav-link-custom i { font-size: 0.85rem; opacity: 0.7; }
        .nav-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            padding: 0 12px;
            flex-shrink: 0;
            transition: opacity var(--transition);
            line-height: 1.2;
        }
        .nav-logo:hover { opacity: 0.9; text-decoration: none; }
        .nav-logo .logo-main {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1.5px;
            background: linear-gradient(135deg, #fff 60%, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(255, 255, 255, 0.08); }

        /* Mobile Drawer */
        .mobile-drawer {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(10, 22, 40, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 20px 24px 32px;
            transform: translateY(-120%);
            opacity: 0;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            z-index: 1040;
            pointer-events: none;
        }
        .mobile-drawer.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-drawer .nav-link-custom {
            display: block;
            padding: 14px 20px;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            border: none;
        }
        .mobile-drawer .nav-link-custom:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
        .mobile-drawer .nav-link-custom.active { color: var(--accent); background: rgba(201, 168, 76, 0.10); }
        .mobile-drawer .nav-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.06);
            margin: 12px 0;
        }

        /* ===== Hero / Banner ===== */
        .news-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .news-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.92) 30%, rgba(10, 22, 40, 0.60) 70%, rgba(10, 22, 40, 0.40));
            z-index: 1;
        }
        .news-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            z-index: 2;
        }
        .news-hero .container { position: relative; z-index: 3; }
        .news-hero-content {
            max-width: 780px;
            padding: 60px 0 70px;
        }
        .news-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 168, 76, 0.15);
            border: 1px solid rgba(201, 168, 76, 0.25);
            color: var(--accent-light);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .news-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .news-hero h1 span { color: var(--accent-light); }
        .news-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-search-box {
            display: flex;
            max-width: 480px;
            background: rgba(255, 255, 255, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 4px;
            backdrop-filter: blur(8px);
        }
        .hero-search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 12px 20px;
            color: #fff;
            font-size: 0.95rem;
            outline: none;
        }
        .hero-search-box input::placeholder { color: rgba(255, 255, 255, 0.45); }
        .hero-search-box button {
            background: var(--accent);
            border: none;
            color: var(--primary);
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-search-box button:hover { background: var(--accent-light); transform: scale(1.02); }

        /* ===== Section Common ===== */
        .section-padding { padding: 80px 0; }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 168, 76, 0.10);
            color: var(--accent-dark);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            border: 1px solid rgba(201, 168, 76, 0.15);
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header.text-left { text-align: left; }
        .section-header.text-left p { margin: 0; }

        /* ===== Category Tabs ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .category-tabs .tab-btn {
            padding: 10px 24px;
            border-radius: 40px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            color: var(--text-body);
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-tabs .tab-btn:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: rgba(201, 168, 76, 0.06);
        }
        .category-tabs .tab-btn.active {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-accent);
        }
        .category-tabs .tab-btn i { font-size: 0.85rem; }

        /* ===== News Cards ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 168, 76, 0.20);
        }
        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--primary-light);
        }
        .news-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .news-card:hover .card-img-wrap img { transform: scale(1.05); }
        .news-card .card-img-wrap .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            letter-spacing: 0.3px;
            z-index: 2;
        }
        .news-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card .card-meta i { margin-right: 4px; font-size: 0.75rem; }
        .news-card .card-meta .meta-cat {
            color: var(--accent-dark);
            font-weight: 600;
        }
        .news-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .news-card a h3:hover { color: var(--accent); }
        .news-card .card-excerpt {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-footer-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            align-self: flex-start;
        }
        .news-card .card-footer-link:hover {
            border-bottom-color: var(--accent);
            gap: 12px;
            color: var(--accent-dark);
        }
        .news-card .card-footer-link i { font-size: 0.75rem; transition: transform var(--transition); }
        .news-card .card-footer-link:hover i { transform: translateX(4px); }

        /* ===== Hot News Ranking ===== */
        .hot-news-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .rank-card {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .rank-card:last-child { border-bottom: none; }
        .rank-card .rank-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-muted);
            background: var(--bg-body);
            transition: all var(--transition);
        }
        .rank-card:nth-child(1) .rank-num { background: var(--accent); color: var(--primary); }
        .rank-card:nth-child(2) .rank-num { background: rgba(201, 168, 76, 0.20); color: var(--accent-dark); }
        .rank-card:nth-child(3) .rank-num { background: rgba(201, 168, 76, 0.12); color: var(--accent-dark); }
        .rank-card .rank-info { flex: 1; min-width: 0; }
        .rank-card .rank-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .rank-card:hover .rank-info h4 { color: var(--accent); }
        .rank-card .rank-info .rank-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .rank-card .rank-info .rank-meta i { margin-right: 4px; }
        .rank-card .rank-hotness {
            flex-shrink: 0;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(201, 168, 76, 0.08);
            padding: 4px 14px;
            border-radius: 30px;
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 22, 40, 0.85);
        }
        .stats-section .container { position: relative; z-index: 2; }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }
        .stat-item {
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
            border-color: rgba(201, 168, 76, 0.25);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.65);
            font-weight: 400;
        }
        .stat-item .stat-icon {
            font-size: 1.8rem;
            color: rgba(201, 168, 76, 0.3);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-white); }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: rgba(201, 168, 76, 0.20); box-shadow: var(--shadow-sm); }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover { color: var(--accent); }
        .faq-item .faq-question i {
            font-size: 1.1rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.92), rgba(10, 22, 40, 0.70));
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-box {
            text-align: center;
            padding: 60px 20px;
        }
        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-box p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 30px;
        }
        .cta-box .btn-group-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-cta-primary:hover {
            background: var(--accent-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-accent);
            text-decoration: none;
        }
        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .site-footer .footer-bottom a:hover { color: var(--accent-light); }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            z-index: 1060;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .news-hero h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-left, .nav-right { display: none; }
            .nav-toggle { display: block; }
            .nav-logo .logo-main { font-size: 1.15rem; }
            .nav-logo .logo-sub { font-size: 0.6rem; }
            .section-padding { padding: 50px 0; }
            .section-header h2 { font-size: 1.7rem; }
            .news-hero { min-height: 320px; }
            .news-hero h1 { font-size: 1.9rem; }
            .news-hero p { font-size: 1rem; }
            .hero-search-box { flex-direction: column; background: transparent; border: none; gap: 10px; }
            .hero-search-box input { background: rgba(255,255,255,0.08); border-radius: 50px; }
            .hero-search-box button { width: 100%; justify-content: center; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .stat-number { font-size: 2rem; }
            .category-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; justify-content: flex-start; -webkit-overflow-scrolling: touch; }
            .category-tabs .tab-btn { flex-shrink: 0; }
            .cta-box h2 { font-size: 1.7rem; }
            .cta-box .btn-group-wrap { flex-direction: column; align-items: center; }
            .site-footer .footer-brand { font-size: 1.25rem; }
            .site-footer { padding: 40px 0 20px; }
            .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .news-hero h1 { font-size: 1.6rem; }
            .section-header h2 { font-size: 1.4rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 20px 12px; }
            .stat-item .stat-number { font-size: 1.6rem; }
            .news-card .card-body { padding: 16px 18px 18px; }
            .news-card h3 { font-size: 1rem; }
            .rank-card { gap: 12px; padding: 14px 0; }
            .rank-card .rank-num { width: 32px; height: 32px; font-size: 0.9rem; }
            .rank-card .rank-info h4 { font-size: 0.9rem; }
            .faq-item .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-item .faq-answer { font-size: 0.88rem; }
            .cta-box { padding: 40px 16px; }
            .btn-cta-primary, .btn-cta-secondary { padding: 12px 28px; font-size: 0.9rem; width: 100%; justify-content: center; }
        }